Equalize subdivision of a mesh
For simple topology you may be able to dissolve edges.  Then use loop cuts again.
Loop Tools, which is an addon,  can also evenly space adjacent loops





Remesh Modifier does this well.  This is often useful for Text to Mesh.
Slightly off topic, but how do you work well with such a jarring UI theme? – NᴏᴠɪᴄᴇIɴDɪsɢᴜɪsᴇ 9 mins ago